Home / 13,351.80-20,005.68-4,581.96

Finding the Fourth Proportional to 13,351.80, 20,005.68 and 4,581.96

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Solution

The fourth proportional to 13,351.80, 20,005.68 and 4,581.96 is: 6,865.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.80 : 20,005.68 = 4,581.96 : x
  2. Step 2: Convert to fraction form
    13,351.80/20,005.68 = 4,581.96/x
  3. Step 3: Cross multiply
    13,351.80x = 20,005.68 × 4,581.96
  4. Step 4: Simplify right side
    13,351.80x = 91,665,225.53
  5. Step 5: Solve for x
    x = 91,665,225.53/13,351.80
  6. Step 6: Final answer
    x = 6,865.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.